The Republican Party, also known as Grand Old Party (GOP) is among the major two political parties in the USA. The Republican Party was founded in the year 1854, where it was formed as a coalition that was against slavery extension in the Western territories. The GOP’s main aim was to oppose the Kansa-Nebraska act, whose main goal was to expand slavery into some territories in the US. This party at that moment was supporting the classical liberalism, supported economic reforms as well opposing slavery expansion. Through the actions of this party, which was under the leadership of Abraham Lincoln, in 1865, slavery was burned in the USA, making it a more significant milestone of the party achievement. The republican main rival party is the democrats, which is the oldest. In the early stages of the party’s life, it consisted of business people, factory workers, farmers, white protestants, and also the African –Americans. The company fought very hard to stop and oppose slavery. Its effort in ending slavery made it gain prominence and became popular in the northern states by having free soil democrats and former Whigs in their rank. Under the leadership of Abraham Lincoln, the party became a success in guiding the union to attain the victory in what id referred to as the American civil war and the role the party played in banning slavery (Laone, Dba, & Laone, 2012). Later the party lost in the congress majority when the globe was facing the most significant depression of all time in 1929 -1940.